From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: drivers/media/i2c/hi847.c:2295:13: warning: use of uninitialized value '<unknown>' [CWE-457]
Date: Thu, 21 Jul 2022 02:28:15 +0800 [thread overview]
Message-ID: <202207210243.hLC0zAII-lkp@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 6163 bytes --]
::::::
:::::: Manual check reason: "low confidence bisect report"
:::::: Manual check reason: "low confidence static check warning: drivers/media/i2c/hi847.c:2295:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]"
::::::
CC: kbuild-all(a)lists.01.org
BCC: lkp(a)intel.com
CC: linux-kernel(a)vger.kernel.org
TO: Shawn Tu <shawnx.tu@intel.com>
CC: Mauro Carvalho Chehab <mchehab@kernel.org>
CC: linux-media(a)vger.kernel.org
CC: Sakari Ailus <sakari.ailus@linux.intel.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: ca85855bdcae8f84f1512e88b4c75009ea17ea2f
commit: da15b409ef4c56e9741deddb91798370802d1d02 media: hi847: Add support for Hi-847 sensor
date: 6 months ago
:::::: branch date: 2 days ago
:::::: commit date: 6 months ago
config: arm-randconfig-c002-20220718 (https://download.01.org/0day-ci/archive/20220721/202207210243.hLC0zAII-lkp(a)intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=da15b409ef4c56e9741deddb91798370802d1d02
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout da15b409ef4c56e9741deddb91798370802d1d02
# save the config file
ARCH=arm KBUILD_USERCFLAGS='-fanalyzer -Wno-error'
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
gcc-analyzer warnings: (new ones prefixed by >>)
drivers/media/i2c/hi847.c: In function 'hi847_test_pattern':
>> drivers/media/i2c/hi847.c:2295:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]
2295 | u32 val;
| ^~~
'hi847_test_pattern': event 1
|
| 2295 | u32 val;
| | ^~~
| | |
| | (1) use of uninitialized value '<unknown>' here
|
drivers/media/i2c/hi847.c: In function 'hi847_set_ctrl_hflip':
drivers/media/i2c/hi847.c:2375:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]
2375 | u32 val;
| ^~~
'hi847_set_ctrl_hflip': event 1
|
| 2375 | u32 val;
| | ^~~
| | |
| | (1) use of uninitialized value '<unknown>' here
|
drivers/media/i2c/hi847.c: In function 'hi847_set_ctrl_vflip':
drivers/media/i2c/hi847.c:2394:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]
2394 | u32 val;
| ^~~
'hi847_set_ctrl_vflip': event 1
|
| 2394 | u32 val;
| | ^~~
| | |
| | (1) use of uninitialized value '<unknown>' here
|
drivers/media/i2c/hi847.c: In function 'hi847_identify_module':
drivers/media/i2c/hi847.c:2822:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]
2822 | u32 val;
| ^~~
'hi847_identify_module': event 1
|
| 2822 | u32 val;
| | ^~~
| | |
| | (1) use of uninitialized value '<unknown>' here
|
drivers/media/i2c/hi847.c: In function 'hi847_check_hwcfg':
drivers/media/i2c/hi847.c:2845:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]
2845 | u32 mclk;
| ^~~~
'hi847_check_hwcfg': event 1
|
| 2845 | u32 mclk;
| | ^~~~
| | |
| | (1) use of uninitialized value '<unknown>' here
|
vim +2295 drivers/media/i2c/hi847.c
da15b409ef4c56 Shawn Tu 2022-01-11 2291
da15b409ef4c56 Shawn Tu 2022-01-11 2292 static int hi847_test_pattern(struct hi847 *hi847, u32 pattern)
da15b409ef4c56 Shawn Tu 2022-01-11 2293 {
da15b409ef4c56 Shawn Tu 2022-01-11 2294 int ret;
da15b409ef4c56 Shawn Tu 2022-01-11 @2295 u32 val;
da15b409ef4c56 Shawn Tu 2022-01-11 2296
da15b409ef4c56 Shawn Tu 2022-01-11 2297 if (pattern) {
da15b409ef4c56 Shawn Tu 2022-01-11 2298 ret = hi847_read_reg(hi847, HI847_REG_ISP,
da15b409ef4c56 Shawn Tu 2022-01-11 2299 HI847_REG_VALUE_16BIT, &val);
da15b409ef4c56 Shawn Tu 2022-01-11 2300 if (ret)
da15b409ef4c56 Shawn Tu 2022-01-11 2301 return ret;
da15b409ef4c56 Shawn Tu 2022-01-11 2302
da15b409ef4c56 Shawn Tu 2022-01-11 2303 ret = hi847_write_reg(hi847, HI847_REG_ISP,
da15b409ef4c56 Shawn Tu 2022-01-11 2304 HI847_REG_VALUE_16BIT,
da15b409ef4c56 Shawn Tu 2022-01-11 2305 val | HI847_REG_ISP_TPG_EN);
da15b409ef4c56 Shawn Tu 2022-01-11 2306 if (ret)
da15b409ef4c56 Shawn Tu 2022-01-11 2307 return ret;
da15b409ef4c56 Shawn Tu 2022-01-11 2308 }
da15b409ef4c56 Shawn Tu 2022-01-11 2309
da15b409ef4c56 Shawn Tu 2022-01-11 2310 ret = hi847_read_reg(hi847, HI847_REG_TEST_PATTERN,
da15b409ef4c56 Shawn Tu 2022-01-11 2311 HI847_REG_VALUE_16BIT, &val);
da15b409ef4c56 Shawn Tu 2022-01-11 2312 if (ret)
da15b409ef4c56 Shawn Tu 2022-01-11 2313 return ret;
da15b409ef4c56 Shawn Tu 2022-01-11 2314
da15b409ef4c56 Shawn Tu 2022-01-11 2315 return hi847_write_reg(hi847, HI847_REG_TEST_PATTERN,
da15b409ef4c56 Shawn Tu 2022-01-11 2316 HI847_REG_VALUE_16BIT, val | pattern << 8);
da15b409ef4c56 Shawn Tu 2022-01-11 2317 }
da15b409ef4c56 Shawn Tu 2022-01-11 2318
--
0-DAY CI Kernel Test Service
https://01.org/lkp
next reply other threads:[~2022-07-20 18:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-20 18:28 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2022-07-26 12:32 drivers/media/i2c/hi847.c:2295:13: warning: use of uninitialized value '<unknown>' [CWE-457] kernel test robot
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